Ch. 17 - Part A Flashcards
Side of heart that receives oxygen-poor blood from tissues
right side
The right side pumps blood to lungs via the…
pulmonary circuit
Side of heart that receives oxygenated blood from lungs
left side
The left side pumps blood to body tissues via the…
systemic circuit
Receiving chambers of heart
right and left atrium
right atrium
receives blood returning from systemic circuit (deoxygenated)
left atrium
receives blood returning from pulmonary circuit (oxygenated)
pumping chambers of heart
right and left ventricles
right ventricle
pumps blood through pulmonary circuit
left ventricle
pumps blood through systemic circuit
pericardium layers
fibrous and serous
serous pericardium layers
parietal and visceral
myocardium
circular or spiral bundles of contractile cardiac muscle cells
epicardium
visceral layer of serous pericardium
cardiac skeleton
crisscrossing, interlacing layers of connective tissue
cardiac skeleton functions
anchors cardiac muscle fibers, supports vessels and valves, limits spread of action potentials to specific paths
four chambers
two superior atria and two inferior ventricles
separates atria
interatrial septum